Perhaps you should try some spelling variations:
"va truong code snippets" » "va truong cd snippets", "va truong co snippets", "va truong cong snippets", "van truong code snippets", "xa truong code snippets", "va thuong code snippets", "va truong code slippers"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets", "using data java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using data java snippets") or ("va truong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using data java snippets") OR ("va truong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using data java snippets ) or ( va truong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using data java snippets") or ("va truong code snippets"))) or ("locating bug code snippets"))*.